Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/11079
Title: Radiocarbon dating of marine carbonates
Authors: Hua, Q
Keywords: Carbonates
Corals
Aragonite
Sediments
Soils
Carbon 14
Issue Date: 18-Jun-2015
Publisher: Springer Nature
Citation: Hua Q. (2015) Radiocarbon dating of marine carbonates. In: Rink W. J., Thompson J. W. (eds) Encyclopedia of Scientific Dating Methods, 1-6. Encyclopedia of Earth Sciences Series. Springer, Dordrecht, Switzerland. doi:10.1007/978-94-007-6304-3_151
Abstract: Marine carbonates such as shells and corals mainly consist of aragonite. Before samples are processed for radiocarbon dating, all contaminants must be removed; otherwise the determination of correct radiocarbon ages may not be achieved. Contaminants are derived from the surrounding environment if samples were buried in soils or sediments (e.g., secondary carbonates derived from groundwater and recrystallization of sample carbonate due to chemical exchange between the sample and the surrounding environment). These carbonate contaminants are mostly in the form of calcite. Contaminants can also be conservation materials in the case of museum specimens. Contamination cannot always be seen by naked eye. In such cases, samples should be screened for secondary carbonates and recrystallization and diagenetic alteration using X-ray diffraction, thin-section examination (McGregor and Gagan, 2003), or scanning electron microscopy (Webb et al., 2007; Nothdurft and Webb, 2009). © Springer Science+Business Media Dordrecht 2015
URI: https://doi.org/10.1007/978-94-007-6304-3_151
https://apo.ansto.gov.au/dspace/handle/10238/11079
ISBN: 978-94-007-6304-3
Appears in Collections:Books

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.